Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

What is Rack awareness?

942

How will format the HDFS ?

947

what are the steps involved in commissioning adding

868

How to use Apache Zookeeper command line interface?

1061

Can NameNode and DataNode be a commodity hardware?

1636

What are the steps to submit a Hadoop job?

865

What is the heartbeat used for?

998

How would you tackle counting words in several text documents?

979

What are the Basics of Hadoop?

885

Explain the shuffle?

855

How blocks are distributed among all data nodes for a particular chunk of data?

1038

How can I install Cloudera VM in my system?

909

How we can take Hadoop out of Safe Mode?

IBM,

819

What is Writable & WritableComparable interface?

893

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1028

Post New Apache Hadoop Questions

Un-Answered Questions { Apache Hadoop }

Who is a 'user' in HDFS?

846

What is Row Key?

935

How do you define "block" in HDFS?

853

What other technologies have you used in hadoop sta ck?

928

Explain what is sqoop in Hadoop ?

680

What is the best hardware configuration to run Hadoop?

1582

How the Client communicates with HDFS?

1009

How to enable/configure the compression of map output data in hadoop?

704

What is a heartbeat in HDFS?

881

What is Disk Balancer in Apache Hadoop?

798

Explain how can we change the split size if our commodity hardware has less storage space?

594

What is a namenode? How many instances of namenode run on a hadoop cluster?

589

What is a speculative execution in Apache Hadoop MapReduce?

739

Explain the Job OutputFormat?

912

Explain the shuffle?

855

For More Un-Answered { Apache Hadoop } Questions Click Here